Attachment for planer for boats



Sept. 10, 1957 o. THOMPSON ATTACHMENT FOR PLANER FOR BOATS 2 Shets-Sheet 1 Filed April l9, 1956 H I I INVENTOR EDWARD QTHOMPSON ATTORNEYS P 1957 E. o. THCMPSON 2,805,696

ATTACHMENT FOR PLANER FOR BOATS Filed April 19, 1956 2 Sheets-Sheet 2 INVENTOR EDWARD QTHOMPSON ATTORNEYS ATTACHMENT FOR PLANER FOR BOATS Edward 0. Thompson, Peshtigo, Wis.

Application April 19, 1956, Serial No. 579,338

3 Claims. (Cl. 145-4) This invention appertains to a novel rotary plane for facilitating the accurate bevelling of the longitudinal edges of planks utilized in clinker built boats and the like, and is an improvement on the invention shown and described in my pending application entitled Planer for Boats, Serial Number 492,650, filed March 7, 1955.

One of the features of the plane shown in my pending application was the provision of slide brackets engaging the work on opposite sides of the rotary planing cylinder, and for supporting the rotary planing cylinder for universal movement, so that the planing cylinder could move freely according to the position of a guide and supporting shoe on an especially formed template.

One of the primary objects of my present invention is to provide a novel guide carried by the central portion of the frame of the planer and intermediate the slide brackets for engagement with the work or plank at the point of juncture (bearding line) of the bevel being formed and the fiat face of the plank, whereby the planer will also be supported on the work at the direct point of engagement of the planing cylinder with the work, so that the planing cylinder will rise and fall in accordance with the thickness of the work at the point of engagement of the planing cylinder with the plank.

Another salient object of my invention is to provide means in longitudinal alignment with the periphery of the planing cylinder for engaging the plank at the point of juncture (bearding line) of the bevel being formed and the face of the plank, while the planing cylinder is making the bevel, so that said means will tend to hold the wood fibers down and prevent the forming of a rough edge by the wood fibers at said bearding line.

A further object of my invention is to provide a novel means for supporting the guide on the frame of the planer and for permitting the adjustment of the guide toward and away from the planing cylinder according to the character of the work and bevel being imparted thereto.

With these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described and claimed and illustrated in the accompanying drawings, in which drawings,

Figure 1 is a side elevational view of the planer showing my novel guide incorporated therewith;

Figure 2 is a top plan view of the planer with the guide associated therewith;

Figure 3 is a transverse sectional view through the planer showing the same in its operative position on the work and template with the guide engaging the work at the bearding line of the work, the figure being on a larger scale than Figures 1 and 2, and

Figure 4 is a fragmentary vertical plan view of the planer showing the guide secured to the frame thereof and in a preferred, selected position. I

Referring to the drawings in detail, wherein similar ref erence characters designate corresponding parts throughout the several views, the letter F generally indicates the rotary planer and G my improved guide associated therewith.

The planar Pis used in connection with a jig J and a template T associated with the jig.

The jig J and the template T have been shown and described in my mentioned pending application. It is to be noted, however, that the jig J includes a table 5 for supporting the, work W and that the planer P is adapted to be moved back and forth over the work W and the template T to form a desired bevel 6 on one longitudinal edge of the plank.

The planer P is also of the type shown in my pending application and the same will not be described in minute detail here, but the same includes a frame or casing 7 having rotatably mounted therein and extending transversely thereof a planing cylinder 8, having any preferred number'ofadjustable cutting blades 9. Also'mounted on the frame 7isan electric motor 10 and the armature shaft of the motor 10 is operatively connected to the planing cylinder 8 for rotating this cylinder at a desired rate of speed. A manipulating handle 11 is associated with the motor for facilitating the movement 'of the planer back and forth over the work and template. One end of the frame 7 has rigidly connected thereto a guide and supporting shoe 12 for engaging the template T and the other end of the frame carries for turning movement laterally extending arms 13 and 14. It can be seen that these arms 13 and 14 project from the opposite sides of a ring 14' mounted for turning movement on the frame. The ring 14' is movable around the axis of the planing cylinder 8. These arms 13 and 14 are in turn connected by hinges 15 to a supporting bar 16. The supporting bar 16 adjacent to its opposite ends carries slide brackets 17 and 18 for direct engagement with the work. These slide brackets 17 and 18 lie on opposite sides of the ring connection of the arms 13 and 14 with the frame 7.

Thus, so far, it can be seen that when the planer is in use the guide and supporting shoe 12 rests upon the template T and that the guide brackets 17 and 18 rest upon the work and that the frame 7 and the planing cylinder 8 swing up and down on the supporting bar 16, by means of the hinges 1S, and turns on the arms 13 and 14, in accordance with the position of the shoe 12 on the template.

In accordance with my present invention, I provide the guide G and this guide G embodies a centrally located guide plate 19. This plate 19 is secured, by means which will be later described, to the lower face of the frame in such a manner that the lower face of the plate is in longitudinal alignment with the periphery of the planing cylinder 8 and directly at one end of the planing cylinder for resting on the work directly at the end of the planing cylinder. As best shown in Figure 3, the inner edge of the plate 19 engages the work W at the point of juncture of the bevel 6 being formed and the upper face of the plank or work W. Thus the guide plate engages the work between the slide brackets 17 and 18 and at the bearding line of the Work at the time the bevel is being formed on the work. Thus, if there are any irregularities in the thickness of the work, the guide will allow the frame and the cylinder to rise and fall in accordance with such thickness, and thus bring about the forming of the correct bevel. Further, the guide plate engaging the work directly at the bearding line during the forming of the bevel holds down the wood fibers and prevents the forming of a rough edge.

It is preferred to adjustably mount the guide plate 19 on the frame and the guide plate is provided with a 1on gitudinally extending guide slot 20. A screw 21 extends through the guide slot and is threaded into the ring 14'. By loosening the screw 21 the guide plate 19 can be adjusted back and forth and by tightening the screw 21 the guide plate can be held in a selected, adjusted position,

The walls of the guide slot 20 are under-cut as at 22, so that the head ofthe screw will not project beyond the lower face of the guide plate.

Changes in details may bemadc without departing from the spirit or the scope of this invention, but what I claim as new is: i

1. A planer for bevelling an edge of a plank or the like comprising a frame, a planing cylinder rotatably carried by the frame and extending transversely .thereof, means for rotating the cylinder, a supporting and guide shoe rigidly carried by one side of the frame, a pair of spaced work engaging slide brackets arranged adjacent to the opposite side of the frame, a bar rigidly connecting said brackets together, a supporting ring rotatably carried by the frame and movable around the axis of the cylinder, hinges rockably connecting thering to the bar, and a guide plate associated with the frame intermediate the slide brackets for'direct engagement with the work in close proximity to the point of engagement of. the planing cylinder with the work.

2. A planer for bevelling an edge of a plank or the like as defined in claim 1, and said plate being in longitudinal alignment with the active peripheral surface of the planing cylinder. 7

3. A planer for bevelling an edge of a plank or the like comprising a frameya planing cylinder rotatably carried by the frame and extending transversely thereof, means for rotating the cylinder, a guide and supporting shoe rigidly carried by one side of the frame, a pair of spaced plank engaging slide brackets arranged adjacent to the opposite side of the frame, a bar rigidly connecting said brackets together, a supporting ring rotatably carried by the frame and movable around the axis of the cylinder, means rockably connecting the ring to the bar, and a guide plate carried'by the lower edge of said ring located intermediate the slide brackets and engaging the plank at the point of juncture of the bevel being formed and the upper. face of said plank.

References Cited in the file of this patent UNITED STATES PATENTS 1,727,383 Simonides Sept. 10, 1929 

